Air filter



The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application with color drawings will be provided by the United States Patent and Trademark Office upon request and payment of the necessary fee.

FIG. 1 is a perspective view showing a new design for an air filter;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left-side elevational view thereof; the right side being a mirror image;

FIG. 5 is a front-side elevational view thereof; the rear side being a mirror image;

FIG. 6 is an enlarged view as designated in FIG. 1 ; and,

FIG. 7 is an enlarged view as designated in FIG. 2 .

The even length dash lines depict portions of the air filter that form no part of the claimed design. The long-short dash lines illustrate the bounds of the magnified portion and form no part of the claimed design. 

CLAIM The ornamental design for an air filter, as shown and described. 